Oil cup



Finca.

RAYMOND Hr. KILLINGER, 0F PORTLAND, MAINE. j

OIL CUP.

Application filed February 21,1923. Serial No.V 620,474.

T0 all whom t may concern:

Be it known that I, RAYMOND H. KILLIN- GER, a citizen of the United States, residing at Portland, inthe countyof Cumberland and `State of Maine, have invented cert-ain new and useful Improvements in Oil Cups, of which the following is a specification.

The present invention relates to oil cups and is especially adapted yfor' use on air pumps of locomotive air compressors.

rLn object of the invention is to mount an oil Icup on the air end of a locomotive air compressor pump which automatically functions, by the normal operation ofthe pump, to constantly and adequately lubricate the latter to thereby eliminate breaking or otherwise incapacitating the air end of the piston due to insufficient lubrication.

A further object of this invention is to provide a lulbricator for the air end `of pumps which eliminates the possibility of feeding the oil in excess quantities thereby.

preventing sluggish operation of the mechanism caused by the accumulation of oil especially when the latter attains a viscous consistency.

Co-ordinate objects of the invention will be apparent from the following description of the present preferred form of the invention taken in connection with `the accom-r pany drawings wherein Fig. 1 is a fragmentary sectional view of an air pump used with locomotive air compressors illustrating the application of my improved oil cup thereon; and

Fig. x2 is a longitudinal sectional view of the oil cup per se showing the top plug removed.

n order to illustrate the application of this invention a portion of an air pump, as used on locomotive air compressors, 3 is shown which may be of the usual or any other configuration. The upper part of the pump, is formed to provide the steam end and the lower part 5 comprises the air end of the pump in a well known manner. In the present instance the top 6 of the air end of the pump is provided with an opening 7 which communicates with the air end of the pump and is provided at its upper end with screwthreads 8.

My improved oil cup consists of a body 9 shown in the present instance to be o-f cylindrical configuration and equipped adjacent its lower end with an integral partition 10. The inner periphery of the lower end of the body 9 is provided with lscrewthreads k11 while the inner periphery of the upper end of the body is provided with screwthreadsv 12. A recess is formed in the inner periphery of the body directly below the screwthreads 12 in vwhich a washer 13 is mounted the upper face of which projects above the lower end of the screwthreads 12 so as to be impinged by the inner end of a cap 14 which is detachably engaged with the threaded upper end of thebody. The cap 14 is provided with a central screwthreaded opening 15 serving as a filler open-l ing which is normally closed by a plug 16. The screwthreads 11 are engaged by corresponding threads formed on a bottom cap 17 thelatter having a well 18 formed therein which communicate-s with a central outlet opening. The, -central outlet opening is screwthreaded and engaged by corresponding threads formed on one end of an outlet pipe 19, the opposite end of the latter being' engagedV with the threads 8 ofthe pump 'The partition 10 and washer 13 are provided with central aligning openings through which the opposite ends of a spindle 20 are slidably mounted. The lower end of the spindle extends appreciably below the bottom face of the partition 10 and is provided with screwthreads 21 upon which an a'butm'ent`22 and nut 23 are mounted. The inner face of the abutment 22 is centrally recessed to provide a fount 24 into which the lubricant is permitted to gravitate through openings 25 formed in the partition 10. The bottom face of the abutment is dished out as indicated bythe numeral 26 to provide a pocket adapted for the reception of air in a manner hereinafter set forth.

ln order to close communication through the openings 25 a suitable valve 26 is provided which is Vformed integral with the spindle 20, adjacent the lower end of the latter but above the partition 10. This valve 26 is provided with a recess 27 which surrounds the lower end of the spindle 2O and is so. formedthat the wall thereof rises just outside of the openings 25. The lower end of the valve 26 is normally held insnug engagement with the upper face ofthe partition 10 by means of a spring 28. The spring 28 is convoluted on the spindle 2O and'has one end thereof engaged with the lower face of the washer 13 and the opposite end engaged with the upper end of the valve 26.

Vby the nut To lill the oil cup the plug 16 is removed and oil introduced through the filler opening l and permitted to pass downwardly through openings 29 'formed in the Washer 13. On the compres-sion stroke of the pump, air passes upwardly through the pipe 19 and into the pocket 26 othe abut-ment 22 so Vas to force the latter against the loiver tace of the partition l0 against the resistance oIn the spring 28, This elevates the valve 26 so as to permit the passage of oil therebeneath throughthe openings and i-nto the tount QnI the, suction stroke ot the pump the lubricatorr is sucked from the Jiount 24 over the top` ojl' the abutment 22 and into the air end oit' the pump in an apparent manner.

The peculiar formation ot, valve positively prevents the lubricator in the oil cup body 'from Vbeing withdrawn from the latter. Moreover, the construction of the abutment prevents air from entering the oil cup body. The abutment may he adjusted to the desired position and secured from displacement 2l, which latter may be'secured from any movement on the spindle by biifurcating the lower end of the latter as inf dicated at 3Q..

It is ot course to be understood that various changes maybe made in this device especially in the details or construction, pro.- portion and arrangement of parts i The essence of this invenjtion, however, is to provide a lubricator cup which is engageable with the air end of a pump of thejcharacter herein described so; as to autoniat-icallyfunc-V tion by the normal operation ot' the pump thereby constantly lubricating the pump with a predetermined volume of oil. The const-ructionI herein recited Will be ound, however, to. produce. effective results sin-ee actual tests have demonstrated that a. pump running continuouslyv 'for ninety-six hours.

will use only gill of lubricant.. Applicant, therefore, reserves the right to make such changes in the device as come Within the purview of the claims appended hereto.

Vfhat is claimed is 1. An oil cup including a body equipped with a partition in its lower end and a Washer at its upper end both of Which are provided With lubricant Openings, a spindle movably mounted in said partition and Washer and. equipped with a valve engageable over the openings in said partition to normallyy close communication through the latter, an abutmentI mounted on` the lower end of said spindle the upper tace ofV Which is recessed tofprovide an oil tount the lower tace being formedy to provide anair pocket, and a pipe engageablel inv the lower end O said body to direct an air blast into the.

POCkGt 0f Said abutment for disehgaging the valve, Withdrawal of air through said pipel causing the oil, in the abutment fount to be sucked through the pipe.

2. A lubricator for the pumps of aircoinpressors' including a receptacle provided with an outlet opening, a valve movably mounted in said receptacle and normally closing communication through said opening, means in operative connection with said valve tobe impinged by air upon the coin,- pressionstroke of the pump", toy unseat said valve and urge said means into` engagement with the receptacle.y for closing communiea,- tion through said opening, said means being provided with a recess to receive a prede@ terinined quantity of oilI passing throughy said opening when said valve isf unseated, the suctionk stroke of ther pump releasing said means to permit said valve to close and to Withdraw the lubricant from the recess of said means.

RAYMOND H. KILLlNGEB; 

